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Profil

Trojan.DownLoader30.27488

Added to the Dr.Web virus database: 2019-10-14

Virus description added:

Technical Information

To ensure autorun and distribution
Creates the following services
  • [<HKLM>\System\CurrentControlSet\Services\jzntjezh] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\jzntjezh] 'ImagePath' = '%WINDIR%\SysWOW64\jzntjezh\jsmrjidz.exe /d"<Full path to file>"'
  • [<HKLM>\SYSTEM\CurrentControlSet\services\jzntjezh] 'ImagePath' = '%WINDIR%\SysWOW64\jzntjezh\jsmrjidz.exe'
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion with following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths] '%WINDIR%\SysWOW64\jzntjezh' = '00000000'
Executes the following
  • '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul
Injects code into
the following system processes:
  • %WINDIR%\syswow64\svchost.exe
Modifies file system
Creates the following files
  • %TEMP%\jsmrjidz.exe
  • %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
  • from %TEMP%\jsmrjidz.exe to %WINDIR%\syswow64\jzntjezh\jsmrjidz.exe
Deletes itself.
Network activity
TCP
HTTP GET requests
  • http://www.google.com/
  • http://ip##fo.io/ip
UDP
  • DNS ASK mi##########m.mail.protection.outlook.com
  • DNS ASK mx#.####industria-vero.it
  • DNS ASK pe##le.com
  • DNS ASK us#######nbound-2.mimecast.com
  • DNS ASK ea###frican.it
  • DNS ASK de#t.it
  • DNS ASK ba###acker.com
  • DNS ASK ba##########om.mail.protection.outlook.com
  • DNS ASK vo#.it
  • DNS ASK ma##.vol.it
  • DNS ASK ya##o.co.uk
  • DNS ASK mx###.##il.am0.yahoodns.net
  • DNS ASK fr###rnidad.com
  • DNS ASK co####.fraternidad.com
  • DNS ASK sa####woodmgt.com
  • DNS ASK sa#######dmgt.com.mx1.rcimx.com
  • DNS ASK fl###per.com
  • DNS ASK ko##s.com
  • DNS ASK ve###nergia.it
  • DNS ASK ma##.koons.com
  • DNS ASK ma##.##cardsierra.com
  • DNS ASK ma##.##cardymestres.com
  • DNS ASK me##el.it
  • DNS ASK mx#.#entel.it
  • DNS ASK ac####itarworks.com
  • DNS ASK mx#.##ailsrvr.com
  • DNS ASK pl##a.com
  • DNS ASK 14#######0.pamx1.hotmail.com
  • DNS ASK po###giulio.it
  • DNS ASK po##########it.mail.protection.outlook.com
  • DNS ASK al#a.es
  • DNS ASK ri####oville.com
  • DNS ASK ma###il.com.sa
  • DNS ASK ad###hia.com
  • DNS ASK ad##########.mail.protection.outlook.com
  • DNS ASK co####.#an.miniato.pi.it
  • DNS ASK google.com
  • DNS ASK is###.ing.unipg.it
  • DNS ASK ri####ymestres.com
  • DNS ASK ri####sierra.com
  • DNS ASK sp#.net.sa
  • DNS ASK co####il.sa-mte.com
  • DNS ASK ap######edicalcentre.com
  • DNS ASK ut###um.co.uk
  • DNS ASK in########ster2.messageexchange.com
  • DNS ASK gr###cegasa.com
  • DNS ASK gr##########com.mail.protection.outlook.com
  • DNS ASK qu##tia.com
  • DNS ASK qu#########.mail.protection.outlook.com
  • DNS ASK ya##o.com
  • DNS ASK po###2.dylog.it
  • DNS ASK mt##.##0.yahoodns.net
  • DNS ASK ew######n-02.mbs.boeing.net
  • DNS ASK fr###.fresnet.it
  • DNS ASK ca###four.com
  • DNS ASK mx#######901.gslb.pphosted.com
  • DNS ASK ut###web.com
  • DNS ASK ut##edo.edu
  • DNS ASK mx#######601.gslb.pphosted.com
  • DNS ASK ya##o.es
  • DNS ASK ca###e-ed.com
  • DNS ASK bl##########om.mail.protection.outlook.com
  • DNS ASK bl###group.com
  • DNS ASK li######.#lc.protection.outlook.com
  • DNS ASK dn#######edge02.email.rr.com
  • DNS ASK co###latin.com
  • DNS ASK co##########om.mail.protection.outlook.com
  • DNS ASK el###f.com.sa
  • DNS ASK ma##.#lseif.com.sa
  • DNS ASK mo###ains.com
  • DNS ASK vi#.#ina.com
  • DNS ASK us#.###.mailhostbox.com
  • DNS ASK un####erkeley.org
  • DNS ASK mx#.##p.sina.com
  • DNS ASK as#.##flexion.net
  • DNS ASK li##ro.it
  • DNS ASK sm####n.libero.it
  • DNS ASK un###bmx.com
  • DNS ASK ma##.#nitybmx.com
  • DNS ASK zf##e.co.nz
  • DNS ASK li##.com
  • DNS ASK so###.rr.com
  • DNS ASK li####ineering.com
  • DNS ASK bo##ng.com
  • DNS ASK ac###heese.com
  • DNS ASK va###llem.com
  • DNS ASK th###twork.it
  • DNS ASK ma##.#henetwork.it
  • DNS ASK gm##l.com
  • DNS ASK gmail-smtp-in.l.google.com
  • DNS ASK va##ode.com
  • DNS ASK bu####ss-post.com
  • DNS ASK bu###########com02b.mail.protection.outlook.com
  • DNS ASK si##a.it
  • DNS ASK ma##.sigma.it
  • DNS ASK ra##.com
  • DNS ASK in.###.trendmicro.eu
  • DNS ASK in###elecom.es
  • DNS ASK mx###.#nfotelecom.es
  • DNS ASK va###farms.com
  • DNS ASK ag#####.wsigenesis.com
  • DNS ASK tp#.#nfomail.es
  • DNS ASK mx#.######deempresas.telefonica.es
  • DNS ASK mx.##url.com
  • DNS ASK ne#s.it
  • DNS ASK tr###area.net
  • DNS ASK te###.com.br
  • DNS ASK 19#.###.211.95.in-addr.arpa
  • DNS ASK ho##ail.com
  • DNS ASK 19#.###.#11.95.dnsbl.sorbs.net
  • DNS ASK ho#########.olc.protection.outlook.com
  • DNS ASK 19#.###.#11.95.bl.spamcop.net
  • DNS ASK 19#.###.#11.95.zen.spamhaus.org
  • DNS ASK 19#.###.##1.95.sbl-xbl.spamhaus.org
  • DNS ASK 19#.###.#11.95.cbl.abuseat.org
  • DNS ASK co##ast.net
  • DNS ASK mx#.#omcast.net
  • DNS ASK ne#.it
  • DNS ASK va#####ploration.com
  • DNS ASK ma##.#-email.net
  • DNS ASK ho###ail.com
  • DNS ASK ex####ge.dewile.net
  • DNS ASK bo##uge.com
  • DNS ASK mx#######c01.gslb.pphosted.com
  • DNS ASK vi#####br-mx.terra.com
  • DNS ASK co###ter.org
  • DNS ASK alt2.aspmx.l.google.com
  • DNS ASK kn##f.it
  • DNS ASK va###olen.be
  • DNS ASK pa##n.com
  • DNS ASK as###.daum.net
  • DNS ASK gr#####formacion.net
  • DNS ASK mx##.1and1.es
  • DNS ASK ca##tol.it
  • DNS ASK cs##ve.net
  • DNS ASK ju####eandalucia.es
  • DNS ASK mx#.#ianet.ca
  • DNS ASK mx#.###.#ailpod6-cph3.one.com
  • DNS ASK te####mputers.com
  • DNS ASK alt1.aspmx.l.google.com
  • DNS ASK va###oten.com
  • DNS ASK mx#.###.#ailpod8-cph3.one.com
  • DNS ASK in###don.net
  • DNS ASK re###.interdon.net
  • DNS ASK ge###auto.net
  • DNS ASK ma##.#estiauto.net
  • DNS ASK mx#.ovh.net
  • DNS ASK pa##tel.com
  • DNS ASK ma##.fresh.it
  • DNS ASK na##r.com
  • DNS ASK mx#.#aver.com
  • DNS ASK as##ab.org
  • DNS ASK sm##.##cureserver.net
  • DNS ASK sc####e.unitn.it
  • DNS ASK aspmx.l.google.com
  • DNS ASK va##oile.be
  • DNS ASK mx.####adeandalucia.es
  • DNS ASK en####omedico.org
  • DNS ASK d2#####.#.#ss.uk.barracudanetworks.com
  • DNS ASK ao#.com
  • DNS ASK mx####.##il.gm0.yahoodns.net
  • DNS ASK us.#bm.com
  • DNS ASK mx######b2d01.pphosted.com
  • DNS ASK po##ol.it
  • DNS ASK pa##.dada.it
  • DNS ASK fr##h.it
  • DNS ASK ma###1.knauf.de
  • DNS ASK mx##.1and1.mx
  • DNS ASK dy###2.dylog.it
Miscellaneous
Creates and executes the following
  • '%WINDIR%\syswow64\jzntjezh\jsmrjidz.exe' /d"<Full path to file>"
  • '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\jzntjezh\' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\jsmrjidz.exe" %WINDIR%\SysWOW64\jzntjezh\' (with hidden window)
  • '%WINDIR%\syswow64\sc.exe' create jzntjezh binPath= "%WINDIR%\SysWOW64\jzntjezh\jsmrjidz.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
  • '%WINDIR%\syswow64\sc.exe' description jzntjezh "wifi internet conection"' (with hidden window)
  • '%WINDIR%\syswow64\sc.exe' start jzntjezh' (with hidden window)
  • '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\jzntjezh\
  • '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\jsmrjidz.exe" %WINDIR%\SysWOW64\jzntjezh\
  • '%WINDIR%\syswow64\sc.exe' create jzntjezh binPath= "%WINDIR%\SysWOW64\jzntjezh\jsmrjidz.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
  • '%WINDIR%\syswow64\sc.exe' description jzntjezh "wifi internet conection"
  • '%WINDIR%\syswow64\sc.exe' start jzntjezh
  • '%WINDIR%\syswow64\svchost.exe'
  • '%WINDIR%\syswow64\svchost.exe' -a cryptonight-heavy -o stratum+tcp://91.203.5.139:8087 -u w1 -p x --nicehash --safe

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
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Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

Find out more about Dr.Web for Android